Generate rpm dependencies (#143415)

* Commit non-py files

* Finish porting calculate and merge scripts for rpm

* Switch back to ts, add binaryDir

* Pass in app path

* Trim string before splitting

* Move files, apply PR feedback

* Add deps to exclude and crashpad handler dep

* polish

build/linux/rpm/dependencies-generator.ts

@@ -0,0 +1,91 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+'use strict';
+
+import { spawnSync } from 'child_process';
+import { constants, statSync } from 'fs';
+import path = require('path');
+import { additionalDeps, bundledDeps } from './dep-lists';
+
+export function getDependencies(buildDir: string, applicationName: string): string[] {
+	// Get the files for which we want to find dependencies.
+	const nativeModulesPath = path.join(buildDir, 'resources', 'app', 'node_modules.asar.unpacked');
+	const findResult = spawnSync('find', [nativeModulesPath, '-name', '*.node']);
+	if (findResult.status) {
+		console.error('Error finding files:');
+		console.error(findResult.stderr.toString());
+		return [];
+	}
+
+	const files = findResult.stdout.toString().trimEnd().split('\n');
+
+	const appPath = path.join(buildDir, applicationName);
+	files.push(appPath);
+
+	// Add chrome sandbox and crashpad handler.
+	files.push(path.join(buildDir, 'chrome-sandbox'));
+	files.push(path.join(buildDir, 'chrome_crashpad_handler'));
+
+	// Generate the dependencies.
+	const dependencies: Set<string>[] = files.map((file) => calculatePackageDeps(file));
+
+	// Add additional dependencies.
+	const additionalDepsSet = new Set(additionalDeps);
+	dependencies.push(additionalDepsSet);
+
+	// Merge all the dependencies.
+	const mergedDependencies = mergePackageDeps(dependencies);
+	let sortedDependencies: string[] = [];
+	for (const dependency of mergedDependencies) {
+		sortedDependencies.push(dependency);
+	}
+	sortedDependencies.sort();
+
+	// Exclude bundled dependencies
+	sortedDependencies = sortedDependencies.filter(dependency => {
+		return !bundledDeps.some(bundledDep => dependency.startsWith(bundledDep));
+	});
+
+	return sortedDependencies;
+}
+
+function calculatePackageDeps(binaryPath: string): Set<string> {
+	try {
+		if (!(statSync(binaryPath).mode & constants.S_IXUSR)) {
+			throw new Error(`Binary ${binaryPath} needs to have an executable bit set.`);
+		}
+	} catch (e) {
+		// The package might not exist. Don't re-throw the error here.
+		console.error('Tried to stat ' + binaryPath + ' but failed.');
+	}
+
+	const findRequiresResult = spawnSync('/usr/lib/rpm/find-requires', { input: binaryPath + '\n' });
+	if (findRequiresResult.status !== 0) {
+		throw new Error(`find-requires failed with exit code ${findRequiresResult.status}.\nstderr: ${findRequiresResult.stderr}`);
+	}
+
+	const requires = new Set(findRequiresResult.stdout.toString('utf-8').trimEnd().split('\n'));
+
+	// we only need to use provides to check for newer dependencies
+	// const provides = readFileSync('dist_package_provides.json');
+	// const jsonProvides = JSON.parse(provides.toString('utf-8'));
+
+	return requires;
+}
+
+// Based on https://source.chromium.org/chromium/chromium/src/+/main:chrome/installer/linux/rpm/merge_package_deps.py
+function mergePackageDeps(inputDeps: Set<string>[]): Set<string> {
+	const requires = new Set<string>();
+	for (const depSet of inputDeps) {
+		for (const dep of depSet) {
+			const trimmedDependency = dep.trim();
+			if (trimmedDependency.length && !trimmedDependency.startsWith('#')) {
+				requires.add(trimmedDependency);
+			}
+		}
+	}
+	return requires;
+}